DUAL SERIAL INPUT PLL FREQUENCY SYNTHESIZER WITH 600MHz PRESCALER

The Fujitsu MB1519 is a 600MHz dual serial input PLL (Phase Locked) frequency synthesizer designed for cellular telephone and cordless telephone applications.

The MB1519 has two PLL circuits on a single chip: one for transmit and the other for reception.

Separate power supply pins are provided for the transmit and reception PLL circuits. Transmit PLL contains a low sensitivity charge pump for ease of modulation and reception PLL contains a high sensitivity charge pump for faster lock up time.

600 MHz dual modulus prescalers are on chip and enables a pulse swallow function.

It operates supply voltage of 3.0V typ. and dissipates 11mA typ. of current realized through the use of Fujitsu’s unique U-ESBIC Bi-CMOS technology.

• High operating frequency: fin = 600MHz

• Low power supply voltage: VCC = 2.7 to 5.5V

• Low power supply current: ICC = 11mA typ, @3V.

• Wide operating temperature: TA = –40 to 85°C

• Two charge pumps

Low sensitivity charge pump for transmit

High sensitivity charge pump for reception

• Plastic 20-pin dual in line package (Suffix: -P)

Plastic 20-pin flat package (Suffix: -PF)